Computer-aided estimates of concentrating-grade iron resources in the Negaunee Iron-formation, Marquette District, Michigan /
| Main Author: | |
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| Other Authors: | , |
| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington :
U.S. Govt. Print. Off.,
1978
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| Series: | Geological Survey professional paper
1045 |
| Subjects: |